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Siemens 5SY4440-6CC11 — 4-Pole MCB (DIN Rail)

Siemens 5SY4440-6CC11 SENTRON MCB, 4P B 40A 10kA

MPN5SY4440-6CC11

Siemens SENTRON 5SY4440-6CC11, 4-pole B-curve miniature circuit breaker, 40 A rated current, 10 kA breaking capacity per EN 60898, 400 V AC, 72 mm wide, 76 mm deep.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SY4440-6CC11 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY4440-6CC11 — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated current (In), AC400 V
Rated current (In), AC40 A
Rated voltage, AC (multi-phase)440 V
Rated voltage, AC (single-phase)440 V
Rated voltage, DC (max.)72 V
Voltage typeAC
Rated frequency50/60 Hz
5SY4440-6CC11 — Protection
ParameterValue
Tripping characteristic (trip curve)B
Rated breaking capacity (Icn), per EN 6089810 kA
Overvoltage categoryIII
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingNo
Touch protectionYes
5SY4440-6CC11 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
SealableYes
5SY4440-6CC11 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of ambient temperature (derating)max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C
5SY4440-6CC11 — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

Integrator note — 5SY4440-6CC11

Terminals accept 0.75…35 mm² solid or stranded copper, tightened to 2.5…3.5 N·m. Combined terminal top and bottom means the same clamp style on both ends, simplifying busbar and cable routing. Sealable, with touch protection on the terminals. IP20 with connected conductors — dry indoor panels only.

Halogen-free and silicon-free construction. Rated for railway applications (design of the product for railway applications). Ambient temperature range -40…+70 °C, storage -40…+75 °C. Overvoltage category III. Energy limiting class 3. The part carries the F designation per DIN EN 61346-2 and DIN EN 81346-2 (protective device).

Frequently asked questions

Where can I buy 5SY4440-6CC11 and get a price?

This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing.

What is the breaking capacity of 5SY4440-6CC11?

10 kA rated breaking capacity per EN 60898 at 400 V AC.

What wire sizes does the 5SY4440-6CC11 accept?

Terminals accept 0.75…35 mm² solid or stranded copper.

What is the mounting width of this MCB?

72 mm, occupying 4 width units on DIN rail.

MPN
5SY4440-6CC11